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C R C 字符、跟在要发送的数据块之后,虽然通常用带有反馈电路的馈电路的硬件移位寄存器来产生,但在以微型处理机为基础的系统中,能用软件迅速产生。
The C R C character, which follows the data block to be transmitted, is usually generated by a hardware shift register on the feed-back circuit with feedback circuitry but can be quickly generated in software on a microprocessor-based system.